Improvement in bollees foe deessing



i@uitrit tetrs atwt @Hirsi BENJAMIN R. COTTON, OF LWISTON,l MAI-NE.'

Letters .Patent No. 71,991, dated December 10, 1867.

IMPROVEMENT IN ROLLEBS FOR DRESSING.

TO ALL WHOM IT MAY CONCERN:

Beit known that I, BENJAMIN R. CorroN, of Lewiston, Androscoggin county, State of Maine, have invented an Improved Dresser-Roll; and I do hereby declare that the following, taken'in connection withthe drawings which accompany and formpart of this specification, is a description of my invention suiiicient to enable those yskilled. in the art to practise it. b

United States Letters Patent, No. 64,078, were granted to me, April 23, 1867, for an improved dresserroll, the improvement consisting in surfacingor covering the roll with a composition of lead and tin,'or an analogousalloy or metal, which resists the action of the size, does not become creased, and has and preserves ian even surface. Said invention is described as particularly applicable to metal rolls, the surfacing-metal being united to the roller-metal by soldering," by depositing with a battery, or by casting. But the invention is also applicable to other rolls, the improvement consisting rather in making a dresserroll with such a surface than in surfacing particular rolls. My present invention, however, relates particularly to eoveringistone rolls with such metal or composition having particular reference to metal-surfacing old soapstone dresser-rolls.

The invention consists primarily in surfacing a stone roll with the metal by irst covering the stone roll with a metal frame, and then casting, soldering, or depositing upon this frame the metal which is to constitute the surface of the dresser-roll, such' surface being subsequently turned down' to cylindrical shape.

The drawings represent a roll embodying this improvement.

A shows the roll in elevation, with a part of the outer surface broken awayto' show the frame and stone surface beneath. i

B shows the roll in cross-section. V a denotes the stone roll, around the cylindrical surface of which, from end to end, I wind a copper, brass,

galvanizediron, or other suitable wire, b, and upon this I cast, solder, or deposit the surface-metal c. The mode of surfacing which I haveparticularly usedhas been to lay bars of solder lengthwiseupon the wire, and to melt the same over ythe wire with a soldering-iron, but other methods may of coursefbe used, and may be found` to be preferable. Having effected lthe covering of the wire,'the surface-metal isthen turned downto give a true cylindrical shape to the roll. Instead of using the wire, a tin, sheet-iron, or other metal tube may be drawn over the stone roll, or a strip of sheet metal may be wound thereupon andthe surface-metal laid upon and cemented thereto, and metal rolls may be similarly covered by laying a frame 'or coil of metal around each as a base to which to unite the surface-metal'or alloy. b

I claim asian improved dresser-roll, a stone roll covered with the surfacing-metal or metal composition, substantially as set forth. b

I also claim the method of surfacing a roll, by placing around or over a central roll a metal frame as a. base upon which to cement the surface-metal, and the surfacing euch frame, substantially as set forth.

Y BENJAMIN R. COTTON.

Witnesses: Y

T. A. D. FESSENDEN, JOHN B. Gorros. 

